Date: Mon, 14 Apr 2008 12:07:25 -0700
Reply-To: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: Re: 52 degree Inline 4 hydraulic lifters leaking down
In-Reply-To: <333c10e0804141150n49cf06a9qfa2e359721a64ef7@mail.gmail.com>
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He only time hydraulic lifters with an oil or hydraulic problem could ever
keep an engine from starting is if they get held 'too open' by excessive oil
pressure. I've seen it and read about it in various makes of cars.
I'm pretty sure that if they don't get any oil pressure, the valves will
still be held open enough to make the engine start and run, but with very
noisy valves.
Waterboxer and all inline 4 VW hyd. Lifters are not related in any way.
Nothing to do with each other except the principle under which they operate.
Hyd. Lifters do not start in VW diesel engines until 86, maybe a year
earlier in Audi - or something close to this.
82 diesel vanagon most definitely never had hyd. Lifters.
I wondered/was concerned about diesel hyd. lifters at 50 degrees when I did
my first TD engine conversion, but it's not a problem, and I've have run
many many thousands of miles with vw diesel inline 4 hyd. Lifters at 50
degrees.
For your situation here, it's not hard to check the compression,
Or observe the valves being opened and closed with the vale cover off.
And if you do think something is going on with the oil and/or air getting
into the hyd. Lifters from the oil pump ........you check the oil pressure,
( to make sure it's not excessive, like from stuck pressure relief valve )
and for air in the oil from the oil pump ( which I've never heard of on a VW
) .....if that's going on, then you think about the oil pump itself, but
it's extremely unlikely in a VW diesel as far as I know.
Scott
www.turbovans.com
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Bill MacLachlan
Sent: Monday, April 14, 2008 11:51 AM
To: vanagon@GERRY.VANAGON.COM
Subject: 52 degree Inline 4 hydraulic lifters leaking down
Hi all...
I have an 82 diesel converted to inline 4 with CIS injection about ten
years ago- just before I bought the vehicle.
I've just had a local VW shop install a replacement 1800cc inline motor in
my van.... I believe they are a good well experienced shop.
They are having an issue with the replacement motor. If the motor is left
for a few hours, apparantly there is no compression, it won't start and the
mechanic is thinking this is the hydraulic lifters leaking.
My old motor had hydraulic lifters ( well, at least that's what the sticker
on the valve cover said and I have no reason to believe otherwise) and I
never had an issue with it.
Here are some questions:
Has anyone else out there had experience with hydraulic lifters in I4
setups- when tilted at 52 degrees?
Are the lifters in a waterboxer the same as the ones used in an inline4 ?
Did the 82 vanagon deisel motor use hydraulic lifters? If so were they the
same as the ones used in more upright deisel motors?
Is there anything I should suggest to the mechanic that would help him get
this thing fixed?
btw current oil filter is a Mann - the black one - and I think they have
10-40 oil in the motor.
Thanks all
Bill M
82 I4 GL
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